NAGRA HD TOUR November 8, 2019 Matej Isak Nagra HD Tour Event at Filtronique Montreal. HD PREAMP, HD AMP or ClassicAmp mono with the Wilson Audio Sasha DAW., TubeDac, VPS, ClassicPSU, Nagra IV-S with master tapes, Modulum Racks. Siltech and Shunyata cables.